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DİLAVEROĞLU, ERDOĞAN

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DİLAVEROĞLU

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ERDOĞAN

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2004 - 200922020 - 20221
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    Sinc interpolation for further improvement in frequency estimation using three dft samples
    (Hindawi Ltd, 2022-11-28) Bayazıt, Hasan; Dilaveroğlu, Erdoğan; DİLAVEROĞLU, ERDOĞAN; Mühendislik Fakültesi; Elektrik ve Elektronik Mühendisliği Bölümü
    This study presents three different sinc estimators and a method to estimate complex-valued exponential tone signal frequency using three DFT samples. The proposed method suggests using sinc interpolation together with the well-known Jacobsen estimator. According to simulation results, the root mean square error (RMSE) of the proposed algorithm is lower than those of the Jacobsen estimator and its improved version suggested by Candan. The price paid for improvements in the RMSE is a slight increase in computation time.
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    Compact Cramer-Rao bound expressions for frequency estimation of sinusoidal signals in unknown colored noise
    (IEEE, 2004-01-01) Yılmaz, Ersen; Dilaveroğlu, Erdoğan; IEEE; YILMAZ, ERSEN; DİLAVEROĞLU, ERDOĞAN; Elektrik Mühendisliği Bölümü; 0000-0002-6620-655X; G-3554-2013; EWI-6920-2022
    Compact expressions of the Cramer-Rao bound matrix for estimating the frequencies of a number of superimposed sinusoidal signals in colored Gaussian noise are presented for both complex and real data cases. The expressions are given for the most general case in which all the signal parameters (the frequencies, amplitudes, and phases of the sinusoids) are unknown and the covariance function of the noise is parameterized in some unspecified way. We then specialize our results for the important case where the noise samples come from an autoregressive noise process.
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    Cramer-Rao bounds on SNR estimation of BPSK signals in rayleigh fading channels with dual MRC diversity
    (IEEE, 2004-06-10) Ertaş, Tuncay; Dilaveroğlu, Erdoğan; ERTAŞ, TUNCAY; DİLAVEROĞLU, ERDOĞAN; Elektronik Mühendisliği Bölümü; AAH-4122-2021; EWI-6920-2022
    Cramer-Rao bound expressions are derived in closed-form for data and non-data-aided SNR estimation of BPSK signals in flat Rayleigh fading channels employing uncorrelated dual MRC diversity. Assuming correlation between the two branches, presented are the bounds most conveniently as plots because of their complexity. Bound expressions are also given for the case of no diversity for comparison.